Refrigerating apparatus



H. W. DYE@ REFRIGERATING APPARATUS LMK EN Filed March am. 1928 2 Sheets-Sheet l M. W. MYER m8469119@ REFRGERATING APPARATUS Filed March 24, 1928 2 Sheets-Sheet 2 INI 'EN TOR.

mental Feb. 2a, 1932 PATENT oFFlcE HARRY W. IDYER, OF NEW YORK, N'. Y.

REFBIGERATING APPAATUS Application led March 24, 1928. Serial No. 264,488.

This invention relates to refrigerating apparatus and is illustrated in connection with a water cooler. Some of its objects are to provide a refrigerator with a cooling chamber which is detachable from the other apparatus, a refrigerator in which the component parts are constructed in units and assembled or replaced, and a refrigerator for a liquid in which the liquid is withdrawn from the top ot its receptacle. Other objects of the invention will appear :trom the following specihcation and the accompanying drawings, in which, F ig. 1, is a vertical section of the complete refrigerator, llig. 2 is a sectional` detail associated with the `delivery1 mechanism of the device,- Fig. 3 is a vertical elevation of the liquid container, Fig. 4f is an elevation oit the refrigerating or cooling coil, lllig. 5 is an elevation oit the tank containing the coil in l? ig. 4 and the heat transferring medium.

lhe construction shown in Fig. 1 relates to aV liquid cooling device of thetype shown in il. S. Patent 1,415,231, issued to me, May 9, 1922. rl`his comprises a cooling chamber i'or receiving the liquid to be cooled, a tank for holding the heat transference medium and in which the cooling chamber is located and a coil through which a refrigerating medium is circulated placed in said ltank and surrounded by the heat transference medium.

rlhe cooling chamber is preferably made lirom earthenware, porcelain or vitreous enamelled material and for sanitary reasons is freely removable and replaceable through the cover of the device. In order to avoid tilted connections between this chamber and the other parts of the device, the liquid is drawn through a tube entering the top of this chamber which terminates in a faucet. By disconnecting this tube the cooling chamber can be lifted out and replaced.

rlhe refrigerating coil is connected by unions with the leaders from the compressor f so that it can be detached, when the cover is removed, or replaced as. a unitary device. The tank is a hollow vessel without perforations or attachments of any kind except for a smallaperture near the upper edge through which the coil connections are made. The

casing is provided with cork insulated walls arranged to receive the Ytank which slides into place. The refrigerating coil is placed inside the tank and the cooling chamber is placed inside the refrigeratng coil. The space between the cooling chamber and tank lis filled with brine,sweet water or other heat transference medium so that heat will be exchanged between the refrigerating coil and the cooling chamber and at the same time, the latter is always free to be removed from the tank.

The compressor for circulating the refrigerating medium comprises a novel form of pump with sleeve valves which is adapted :tor high speed, silent running and comparatively high pressures. This pump runs in oil, is positive in action and avoids the use of sprm s.

Reierring to the drawings, the base, 12 is the casing and 13 cover. The casing is divided by the transverse shelf 14 into an upper section which is provided with the heat insulated walls 15 and a lower section in which the operating mechanism is housed. The tank or receptacle 16 is slid into place from the top against the insulated walls 15 and is provided with a turned over lip at the upper edge with apertures 16a, Fig. 5, therein through which the coil connections are made.

The refrigerating coil 17 is placed inside the tank and is coupled at 34 with pipe 33 and Fig. l, 11 is is the top or at with pipe 36. By uncoupling theseunions, the coil 'can be removed or replaced when cover 13 is removed. In the drawings the coil is shown as a single spiral but in practice more than one spiral may be used.

The cooling chamber or container 18 which is in the form of a jar has the iianged collar 19 secured to its neck and which forms part of the cover of the device. This collar rests upon the cover 13 and is somewhat larger in diameter than the jar so that the j ar may be withdrawn through this opening in 13.

The neck ot thecooling chamber is provided with a* rubber gasket at 20 upon which the inverted water bottle 21 rests and forms an air tight seal. In the arrangement as described i the heat exchanging medium is supplied to chamber a thereby cooling the j ar 18 and the cooling chamber b which is connected with the supply chamber c.

For sanita reasons as well as to reduce the cost of assem ly, the coolingl chamber 1s not provided with attaching fixtures so that it is freely removable. On this account the spigot connected with the cooling chamber has its outlet through the top of this chamber it to discharge through pipe 43. For this purpose I employ an air pump as indicated in Fig. 2 Where the plunger 51 operates the piston 52 in the pump 50 against the spring and forces air through the check Valve 53 and the pipe 49 into the chamber b. As the air pressure is increased in this chamber, or in chamber c the liquid is forced out through spigot 46. The air pump is preferred for this purpose to a suction pump as it can work only when chamber bis covered and it is desirable to insure that this chamber remain covered. Another advantage is obtained by the use of the air pump in that the liquid does not have to flow through this pump thus avoiding leakage and securing a better sanitary arrangement. The pipes 43 and 49 are coupled at 45 so that they can readily be uncoupled ywhen the ar 18 is to be removed, or the pump 50 may be disconnected from the cover 13 and removed with the jar. y

The operating mechanism comprises the electric motor 22, coupled at 23 to the pumpcompressor 24 and driving the air fan 25 at.

the opposite end in front of the radiator 26. The compressor is connected by pipe 27 with the radiator 26 where the compressed refrigerant is cooled by fan 25 and then conducted by pipe 28 to the reducing valve 29, then by pipe 30 to the ice chamber 31 which is filled with a heat exchanging medium surrounding the ice tray 32. From the ice chamber 31 the refrigerant is conducted bypipe 33 embedded in the insulation wall over the upper edge of tank 16 to the coil 17 in chamber a. From this coil the refrigerant is conducted by pipe 36 back to the compressor 24 where itv is again compressed and the cycle of operation is repeated.

The motor 22 is automatically controlled by the thermostat 37 in chamber a which connects by pipe 38 with the thermostat controller 39 which operates a switch at 40 controlling the electric supply on main 41 to the motor lead 42. This brings the motor into operation when the temperature in chamber a falls below a predetermined value.

It is here pointed out that the motor, fan, radiator, reducing valve, ice chamber and thermostatic controlling apparatus are commercial products of which a variety are on the market and a detailed description of these devices is not deemed necessary herein.

Having thus described my invention, I claim: y

1. In an apparatus as described, the combination, a vstand with a cover, a porcelain cooling container supported by said stand and having its upper end opening through said cover, an inverted water bottle connected with said opening through a sealed connection and a delivery tube entering the upper part of said container through a sealed connection and extending to substantially the bottom of said container. A

v2. In an apparatus as described, the combination, a stand with a cover, a porcelain.

cooling container supported by said stand and having its upper end opening through said cover, an inverted water bottle connected with said opening through a sealed connection, a delivery tube entering the upper part of said container through a sealed connection and means for increasing the air pressure in said container.

3. Refrigerating apparatus as described, comprising a stand with a compressor, a tank,

`said coil connected with said compressor.

whereby a refrigerant is circulated in said coil, said container assembled in said tank and being smaller than said tank so as to be freely removable therefrom and a heat exchanging medium in `said tank surroundin said container, a cover for said housing with an aperture in the coverlarger than said container through which said container may be freely removed and means secured to said container forming a .closure for said aperture.`

5. Refrigerating apparatus comprising in combination a housing containing a heat insulated receptacle with a liquid heat exchanging medium therein, a refrigerating element located in said receptacle, means for circulating a refrigerant in said element and a cooling container located in said receptacle and surrounded by said heat exchanging medium, said cooling container being supported by said receptacle and being smaller in ,size than said refrigerating element so that it is freely -a cooling coil and a cooling container, said ith till

tid

fill

removable from said rece tacle and means for supplying liquid to said container when in place.

u. Refrigerating apparatus comprisingin combination, a housing containing a heat 1nsulated receptacle with a liquid heat exchanging medium therein, a refrigerating element located in said receptacle, means for circulating a refrigerant in said element and a orcelain cooling container located 1n said receptacle and surroundedby saidheat exchanging medium, said cooling container being supported through its base by said receptacle by resting thereon and being smaller 1n size than said receptacle so as to be freely removable therefrom and means for supplying liquid to said container when in place.

Y. liefrigerating apparatus compr1sing in combination, a housing containing a heat insulated receptacle with a liquid heat exchanging medium therein, a refrigerating element located in said receptacle, means for circulating a refrigerant in said element and a cooling container located in said receptacle and surrounded by said heat exchanging medium, said cooling container being enclosed and means for removing itsfcontents while it is closed and said container being supported through the base by said apparatus and being smaller in size than said receptacle so as to be freely removable therefrom and means for supplying liquid to said container when in lace..

p 8. ln a refrigerating apparatus, the combination, a liquid heat insulated receptacle with a heat exchanging medium therein, a refrigerating element located in said receptacle, means for circulating a refrigerant in said element, a porcelain cooling container located in said receptacle and surrounded Iby said medium, said container having an Vopening at the top which is normally closed and means for withdrawing the contents of said container through an independent aperture in its top Without remov ing the closure of the top.

9. in a refrigerating apparatus, the combination, a heat insulated receptacle with a heat exchanging medium therein, arefrigerating element located in said receptacle, means for circulating a refrigerant in said element, a cooling container located in said receptacle and surrounded by said medium, said cooling container having an opening which is normally closed and a mechanism for forcing the contents from said container through an independent aperture in its top l0. Refrigerating apparatus comprising in combination, a case, having heat insulated walls, a cylindrical receptacle with a liquid heat exchanging medium therein located in said case but being freely removable therefrom, a refrigerating element located in said receptacle of smaller diameter than said receptacle so as to be freely removable therefrom, means for circulating a refrigerant in said element, a cooling container located in said receptacle and surrounded by said medium of smaller diameter than said refrigerating element so as to be freely removable from said container and an inverted liquid reservoir connected with said cooling container.

11. Refrigerating apparatus comprising in combination, a case with heat insulated Walls, a tank enclosed by said walls containing a heat exchanging medium, a refrigerating element located in said tank, means for circulating a refrigerant in said element, a pair of pipe connections between said means and said element, said pipe connections being arranged to pass over the edge of said tank, a cooling container located in said tank and a liquid supply connected with said container.

12. Refrigerating apparatus comprising in combination, a case with heat insulated Walls and a cover, a tank enclosed by said Walls containing a heat exchanging medium, a refrigerating coil located in said tank, means for circulating a refrigerant in said coil, a cooling container located in said tank and being freely removable therefrom and a collar with a flange for said container, said container `passing through an aperture in said cover and having the flange resting on said cover to form a closure for said aperture, and means for supplying liquid to said cooling container.

13. Refrigerating apparatus comprising in combination, a case with heat insulated Walls and a cover, a tank enclosed by said Walls` containing a liquid heat exchanging medium and being smaller than said enclosure so as to be freely removable from said case, a refrigerating element located in said tank and connected With a means for circulating a refrigerant therein, said element being smaller than said tank so as to be freely removable from said tank, a cooling container containing a liquid located in said tank and being smaller than said tank so as to be freely re movable with the liquid through an aperture in said cover and means for supplying liquid to said cooling container.

14. In a refrigerating system, the combination, a case with a cover, a tank supported by said case containing a heat exchanging medium, a refrigerating element located in said tank and connected with a means for circulating a refrigerant therein, a liquid cooling container located in said tank and being smaller than said tank so as to be freely removable with its contents through an aperture in said cover and means for supplying liquid to sai-d container.

l5. In a refrigerating system, the combination, a case with a cover, a tank supported by said case containing a heat exchanger medium, a refrigerating element located in said iso tank and connected with means for circulating a refrigerant therein, a cooling container located in said tank and being smaller than said tank so as to be freely removable there- '5 from through an aperture in said cover, a collar for said container projecting through said aperture and engaglng said cover and l' means for supplying liquid to said container. 16. Refrigerating apparatus as described,

comprising a stand with a compressor, a tank a cooling coil and a cooling container, said coil connected with said compressor whereby a refrigerant is circulated in said coil, said tank supported by said stand and being smaller than said tank so as to be free- -ly removable therefrom, said coil and said container located in said tank and being smaller than said tank so as to be freely removable therefrom and means for supplying the material to be cooled to said container.

In testimony whereof I aix my signature.

" HARRY W. DYER. 

